Howling Blades

In the Frost Death Knight talent tree, Howling Blades sits in the Frost specialization talents, row 7 of 11. It is a single-point node. Its row opens once 8 points are spent in Frost Talents.

Connected above

The tree draws a line into Howling Blades from Inexorable Assault and Murderous Efficiency.

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  Inexorable Assault

  Obliterate and Frostscythe consume up to 3 stacks, dealing an additional (26.3% of Attack Power) Frost damage for each stack consumed.

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  Murderous Efficiency

  Consuming the Killing Machine effect has a 20% chance to grant you 1 Rune.

Connected below

Howling Blades leads on to Bonegrinder.

• 
  Bonegrinder2 ranks

  At your next Killing Machine consumes the stacks and grants you 10% increased Frost damage for 10 sec.

Same row

Also on this row: Cryogenic Chamber, Frostwyrm's Fury, Everfrost and Northwinds.

• 
  Cryogenic Chamber

  When Howling Blast consumes Rime, 15% of the damage it deals is gathered into the next cast of Remorseless Winter, up to 20 times.

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  Frostwyrm's Fury

  Summons a frostwyrm who breathes on all enemies within 40 yd in front of you, dealing (296.6% of Attack Power) Frost damage, stunning enemies for 3 sec, and slowing movement speed by 50% for 10 sec.

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  Everfrost

  Rime empowered Howling Blast deals 50% increased damage to secondary targets.

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  Northwinds

  Howling Blast now hits an additional target with maximum effectiveness. Rime increases Howling Blast damage done by an additional 75%.